$ git clone -n https://src.fedoraproject.org/rpms/clazy.git /var/lib/mock/f40-build-2339664-59668/root/chroot_tmpdir/scmroot/clazy
Cloning into '/var/lib/mock/f40-build-2339664-59668/root/chroot_tmpdir/scmroot/clazy'...
$ git fetch origin 5a25e4d6b53f13278b2654ef1b107a6d2dee0b7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clazy
 * [new ref]         5a25e4d6b53f13278b2654ef1b107a6d2dee0b7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a25e4d Update to latest git snapshot